package com.secondGroup.utils;

public class ESIndexConstants {
    public static final String SALT = "fskdhfiuhjfshfjhsad4354%￥%￥%3";

    public static void main(String[] args) {
        // 截取4-7
        String abc = "610402200006247499";
        String substring = abc.substring(6, 11);
        System.out.println(substring);

    }
}